How many moles of (NH_4)_2S are there in 75 g of (NH_4)_2S? A) 1.10 B) 1.56 C) 1

Question

How many moles of (NH_4)_2S are there in 75 g of (NH_4)_2S? A) 1.10 B) 1.56 C) 1.04 D) 1.50 Which is NOT a characteristic of acids? A) react with active metals to form H_2 gas B) react with bases to form salts C) turn litmus red D) taste bitter Which is NOT a characteristic of bases? A) produce hydroxide ions when added to water B) turn litmus red C) taste bitter D) react with acids to form salts Lemon juice has a sour taste and turns litmus to red. Lemon juice is A) caustic B) acidic C) neutral D) basic Many medicines have a bitter taste which manufacturers attempt to disguise. Many medicines are probably A) salts B) acids C) bases D) neutral. Which of the following acids is responsible for the sour taste of yogurt? A) lactic B) acetic C) phosphoric D) citric Foods that are acidic can be identified by their ___________ taste. A) sour B) salty C) bitter D) sweet which of the following is/are characteristics(s) of acids? A) taste sour B) react with bases to form

Explanation / Answer

10) A

11) D

12) B

13) B

14) C

15) A

16) A

17) D

18) A

19) D

20) B

All acids tastes sour, All bases tastes bitter.

Acid turns litnus paper into red.

Acid reacts with base to give salts.

Ph below 7 is acidic and above 7 is basic

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